![cygnus 4+ cygnus 4+](../../../images/products/cygnus/cygnus4_plus-205x150.jpg)
Cygnus 4+ General Purpose
The Cygnus 4PLUS is a small and tough multi-mode ultrasonic thickness gauge which features an A-scan display and simple to use sequential data logging. Designed for the harshest of environments, with a simple to use keypad, intuitive menus and a colour LCD display.
![cygnus 6+ cygnus 6+](../../../images/products/cygnus/cygnus6_plus-205x150.jpg)
Cygnus 6+ Pro
The Cygnus 6PLUS has a range of features for the professional user including, multi-mode measuring capabilities, A-scan, real-time B‑scan, manual and automatic gain control, comprehensive data logging and high temperature probe compensation.
![cygnus hd cygnus hd](../../../images/products/cygnus/cygnus_hd-205x150.jpg)
Cygnus Heavy Duty
Cygnus Instruments have designed the Cygnus Heavy Duty ultrasonic thickness gauge for use in tough and demanding environments where a rugged construction is essential to accurately gauge corrosion measurement and determine metal thickness without having to remove protective coatings.